33016649 has 2 divisors, whose sum is σ = 33016650. Its totient is φ = 33016648.

The previous prime is 33016639. The next prime is 33016663. The reversal of 33016649 is 94661033.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30327049 + 2689600 = 5507^2 + 1640^2 .

It is an emirp because it is prime and its reverse (94661033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33016649 - 2²⁰ = 31968073 is a prime.

It is a super-2 number, since 2×33016649² = 2180198222378402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33016639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16508324 + 16508325.

It is an arithmetic number, because the mean of its divisors is an integer number (16508325).

Almost surely, 2^33016649 is an apocalyptic number.

It is an amenable number.

33016649 is a deficient number, since it is larger than the sum of its proper divisors (1).

33016649 is an equidigital number, since it uses as much as digits as its factorization.

33016649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 33016649 is about 5746.0115732567. The cubic root of 33016649 is about 320.8073655863.

The spelling of 33016649 in words is "thirty-three million, sixteen thousand, six hundred forty-nine".